CN216482721U

CN216482721U - Square lithium cell utmost point ear interval tool of test

Info

Publication number: CN216482721U
Application number: CN202123094759.5U
Authority: CN
Inventors: 胡常青; 赵明; 李津; 林安灼
Original assignee: Shandong Yincheng New Energy Technology Co ltd
Current assignee: Shandong Yincheng New Energy Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-10
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to a lithium battery test technical field, specifically speaking relates to a test square lithium battery tab interval tool, including the bakelite board bottom plate, be close to rear end department on the bakelite board bottom plate and be equipped with the detection groove, the front end department symmetry that detects the groove is equipped with two utmost point ear counterpoint grooves, detects the groove and adopts precision finishing, and the centre-to-centre spacing between two utmost point ear counterpoint grooves is 8mm, and the machining precision that detects the groove is 0.1 mm. The jig for testing the lug spacing of the square lithium battery is simple in structure and convenient to use, and is made of insulating materials, so that the safety performance is good; the adaptive die can be manufactured according to the model, so that the testing precision is high, the product consistency is ensured, the product quality of the square lithium battery is improved, and the defective rate is reduced.

Description

Square lithium cell utmost point ear interval tool of test

Technical Field

The utility model relates to a lithium battery test technical field, specifically speaking relates to a square lithium battery tab spacing tool of test.

Background

At present, a lithium battery has become one of the power sources of great concern because of its advantages of high voltage platform, no pollution, good cycle performance, etc. Lithium batteries generally have a cylindrical, square, or flat configuration. However, in practical production, the positive and negative electrodes of the square lithium ion battery are arranged on the same side, and the positive and negative electrodes are in contact due to the excessively small distance between the electrodes, so that short circuit is caused, and great potential safety hazard exists, so that it is necessary to develop a square lithium ion battery electrode lug distance testing jig. However, at present, there is no device specially used for testing the tab spacing of the square lithium battery, so that the test is inconvenient and inaccurate, and the defective rate of the lithium battery caused by the deviation of the tab spacing is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a square lithium cell utmost point ear interval tool of test to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a test square lithium cell utmost point ear interval tool, includes the bakelite board bottom plate, it is equipped with the detection groove to be close to the rear end department on the bakelite board bottom plate, the front end department symmetry that detects the groove is equipped with two utmost point ear counterpoint grooves, it adopts precision finishing, two to detect the groove the centre-to-centre spacing between the utmost point ear counterpoint groove is 8mm, the machining precision who detects the groove is 0.1 mm.

Preferably, the rear end of the detection groove is open.

Preferably, the depth of the detection groove is smaller than the thickness of the bakelite board base plate.

Preferably, the depth of the bakelite plate bottom plate is greater than or equal to half of the thickness of the square lithium battery.

Preferably, the length of the tab aligning groove is greater than or equal to the length of the tab extending out of the square lithium battery shell.

Preferably, the width of the tab aligning groove is greater than that of the widest position of the tab.

Preferably, calibration scale marks are arranged at the edge of the front end of the tab aligning groove, and the two groups of calibration scale marks are symmetrically distributed.

Preferably, the inner side walls of the left side and the right side of the detection groove are provided with finger grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the jig for testing the distance between the lugs of the square lithium battery is simple in structure, convenient to use, made of insulating materials and good in safety performance;

2. this square lithium battery tab interval tool of test can make the adaptation mould according to the model, makes its measuring accuracy high, guarantees the product uniformity, improves the product quality of square lithium cell, reduces the defective percentage.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

fig. 2 is a schematic overall structure diagram of a second embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of a third embodiment of the present invention.

In the figure:

1. a bakelite board base plate; 11. a detection tank; 111. a tab aligning groove; 112. a finger groove; 12. and calibrating the scale marks.

Detailed Description

The technical solution in the present invention will be clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described utility model is only a part of the utility model rather than the whole utility model. Based on utility model provides a, all other utility model that the ordinary skilled person in the art obtained under the prerequisite of not making creative work all belong to the utility model discloses the scope of protection.

In the description of the present invention, it is to be understood that the terms "intermediate", "length", "width", "thickness", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, the present invention provides a technical solution:

the utility model provides a test square lithium cell utmost point ear interval tool, includes bakelite board bottom plate 1, is close to rear end department on the bakelite board bottom plate 1 and is equipped with detection groove 11, and the front end department symmetry that detects groove 11 is equipped with two utmost point ear counterpoint grooves 111, detects groove 11 and adopts precision finishing, and the centre-to-centre spacing between two utmost point ear counterpoint grooves 111 is 8mm, and the machining precision that detects groove 11 is 0.1 mm.

Wherein, adopt 8mm centre-to-centre spacing to be the safe interval of avoiding appearing the short circuit condition between the utmost point ear, adopt 8 mm's centre-to-centre spacing, machining precision 0.1mm can ensure square lithium cell suitability.

In this embodiment, the rear end of the detection groove 11 is open, so that when the tab distance is tested, the square lithium battery is pushed forwards from the rear to enable the tab to enter the tab alignment groove 111 corresponding to the tab position, and the square lithium battery is also pushed backwards from the front to be taken out conveniently.

In this embodiment, the depth of the detection groove 11 is smaller than the thickness of the bakelite board bottom plate 1, so as to avoid penetrating through the bakelite board bottom plate 1.

Specifically, the bakelite plate base plate 1 is preferably made of a high-quality bakelite plate, is firm and stable in material quality, good in insulating property and good in safety performance for testing the distance between the lugs of the square lithium battery.

Further, the depth of the bakelite plate bottom plate 1 is greater than or equal to half of the thickness of the square lithium battery, so that when the square lithium battery is arranged in the detection groove 11, the widest position of the lug at the middle position of the top end of the square lithium battery can be clamped in the lug aligning groove 111 at the corresponding position, and the distance between the two lugs can be accurately tested.

In this embodiment, the length of the tab aligning groove 111 is greater than or equal to the length of the tab extending out of the square lithium battery shell, so that the tab can completely penetrate into the tab aligning groove 111.

Specifically, when the length of the tab aligning groove 111 is equal to the length of the tab extending out of the square lithium battery shell, the index of the length of the tab can be accurately tested.

Further, the width of the tab aligning groove 111 is larger than the width of the widest position of the tab, and the tab aligning groove should be wider by a certain size, so that a square lithium battery with a slightly deviated distance between the two tabs can be conveniently clamped and tested.

In addition, this tool is mainly applicable to model 501447 product lithium ion battery, makes the adaptation mould according to 501447 model, puts into the battery that awaits measuring during the test and detects groove 11, selects out the too big or undersize product of utmost point ear interval, can effectively guarantee the product uniformity, avoids appearing the short circuit condition between the utmost point ear simultaneously.

Example 2

Referring to fig. 2, the present invention provides a technical solution in the extrusion of embodiment 1:

In this embodiment, the front end edge department in utmost point ear counterpoint groove 111 is equipped with calibration scale mark 12, and when being convenient for test utmost point ear interval, can accurately acquire the degree of utmost point ear interval deviation to as follow-up adjustment modified foundation.

Specifically, two sets of calibration marks 12 are symmetrically distributed, so that both tab alignment slots 111 can perform the operation of measuring the deviation degree.

Example 3

Referring to fig. 3, the present invention provides a technical solution based on embodiment 2:

In this embodiment, all be equipped with finger groove 112 on the inside wall of the left and right sides of detection groove 11, be convenient for put into or take out square lithium cell directly from top to bottom, promote the outside wearing and tearing injury of process to square lithium cell around reducing.

The utility model discloses a test square lithium cell utmost point ear interval tool is when using, at first according to the mould of the signal customization size adaptation of the square lithium cell that awaits measuring, will await measuring square lithium cell and put into the detection groove 11, with utmost point ear push into the utmost point ear counterpoint groove 111 that corresponds the position, observe the interval condition of two utmost point ears: if the tab cannot be pushed in, the distance is too small, if the gap between the tab and the side wall of the tab aligning groove 111 after the tab is pushed in is large, the distance is too large, one tab can be abutted to the inner side wall of the tab aligning groove 111 close to the inner side, the distance value between the other tab and the inner side wall of the tab aligning groove 111 close to the inner side is read, and a deviation value is obtained so as to facilitate subsequent adjustment and improvement.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The technical personnel of this trade should understand, the utility model discloses do not receive above-mentioned utility model's restriction, what describe in above-mentioned utility model and the description only does the preferred example of the utility model to do not need to restrict the utility model discloses, under the prerequisite that does not depart from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the within range of the utility model who requires protection. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a test square lithium cell utmost point ear interval tool which characterized in that: including bakelite board bottom plate (1), be close to rear end department on bakelite board bottom plate (1) and be equipped with detection groove (11), the front end department symmetry of detecting groove (11) is equipped with two utmost point ear counterpoint grooves (111), it adopts precision finishing, two to detect groove (11) centre-to-centre spacing between utmost point ear counterpoint groove (111) is 8mm, the machining precision of detecting groove (11) is 0.1 mm.

2. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: the rear end of the detection groove (11) is open.

3. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: the depth of the detection groove (11) is smaller than the thickness of the bakelite board base plate (1).

4. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: the depth of the bakelite board base plate (1) is more than or equal to half of the thickness of the square lithium battery.

5. The jig for testing the lug distance of the square lithium battery as claimed in claim 1, wherein: the length of the tab aligning groove (111) is greater than or equal to the length of the tab extending out of the square lithium battery shell.

6. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: the width of the tab aligning groove (111) is greater than that of the widest position of the tab.

7. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: the edge of the front end of the tab aligning groove (111) is provided with calibration scale marks (12), and the two sets of calibration scale marks (12) are symmetrically distributed.

8. The jig for testing the lug spacing of the square lithium battery as claimed in claim 1, wherein: and finger grooves (112) are formed in the inner side walls of the left side and the right side of the detection groove (11).